package com.group9.service;

import com.alibaba.fastjson.JSONObject;
import com.google.gson.Gson;
import com.group9.dto.Message;
import com.group9.pojo.CommentMessage;
import lombok.extern.slf4j.Slf4j;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;

import javax.websocket.*;
import javax.websocket.server.PathParam;
import javax.websocket.server.ServerEndpoint;
import java.io.IOException;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * Created by Lcouncillor on 2020/6/3.
 */
@Slf4j
@Component
@ServerEndpoint("/commentalert/{userId}")
public class CommentMessageServer {
//
//    private static Logger log = Logger.getLogger(WebSocketServer.class);
//
//    /**
//     * 用于存放所有在线客户端
//     */
//    private static Map<String, Session> clients = new ConcurrentHashMap<>();
//
//    private Gson gson = new Gson();
//
//    @OnOpen
//    public void onOpen(@PathParam("userId") String userId ,
//                       Session session){
//        log.info("有新的客户端上线: userId = "+ userId);
//        clients.put(userId,session);
//        log.info("当前连接数 = " + clients.size());
//
//    }
//
//    @OnClose
//    public void onClose(@PathParam("userId") String userId,
//                        Session session) {
//        log.info("有客户端离线: : userId = " + userId);
//        clients.remove(userId);
//        log.info("当前连接数 = " + clients.size());
//    }
//
//
//    @OnError
//    public void onError(@PathParam("userId") String userId,
//                        Throwable throwable,
//                        Session session) {
//        log.info("[WebSocketServer] Connection Exception : userId = "+ userId + " , throwable = " + throwable.getMessage());
//        clients.remove(userId);
//        log.info("当前连接数 = " + clients.size());
//    }
//
//
//    @OnMessage
//    public void onMessage(@PathParam("userId") String userId,
//                          String message) {
//        log.info("收到客户端发来的消息: userId = "+ userId + " , message = " + message);
//
//
//        CommentMessage commentMessage = (CommentMessage) JSONObject.parseObject(message,CommentMessage.class);
//        log.info(commentMessage);
//        if (message.equals("&")){
//
//        }else{
////            WebSocketUtils.receive(userId , message);
////            return "Got your message ("+ message +").";
//            this.sendTo(commentMessage);
//        }
//    }
//
//    /**
//     * 发送消息
//     *
//     * @param message 消息对象
//     */
//    private void sendTo(CommentMessage message) {
//        log.info(message.getSenderId());
//        Session s = clients.get(message.getSenderId());
//        log.info(clients.toString());
//
//        if (s != null) {
//            log.info(new JSONObject().toJSONString(message));
//            try {
//                s.getBasicRemote().sendText("comment");
//            } catch (IOException e) {
//                e.printStackTrace();
//            }
//        }
//
//    }

    private static Logger log = Logger.getLogger(WebSocketServer.class);

    /**
     * 用于存放所有在线客户端
     */
    private static Map<String, Session> clients = new ConcurrentHashMap<>();

    private Gson gson = new Gson();

    @OnOpen
    public void onOpen(@PathParam("userId") String userId ,
                       Session session){
        log.info("有新的客户端上线: userId = "+ userId);
        clients.put(userId,session);
        log.info("当前连接数 = " + clients.size());
    }

    @OnClose
    public void onClose(@PathParam("userId") String userId,
                        Session session) {
        log.info("有客户端离线: : userId = " + userId);
        clients.remove(userId);
        log.info("当前连接数 = " + clients.size());
    }


    @OnError
    public void onError(@PathParam("userId") String userId,
                        Throwable throwable,
                        Session session) {
        log.info("[WebSocketServer] Connection Exception : userId = "+ userId + " , throwable = " + throwable.getMessage());
        clients.remove(userId);
        log.info("当前连接数 = " + clients.size());
    }


    @OnMessage
    public void onMessage(@PathParam("userId") String userId,
                          String message) {
        log.info("收到客户端发来的消息: userId = "+ userId + " , message = " + message);
        log.info(gson.fromJson(message, Message.class));
        if (message.equals("&")){

        }else{
//            WebSocketUtils.receive(userId , message);
//            return "Got your message ("+ message +").";
            this.sendTo(gson.fromJson(message, Message.class));
        }
    }

    /**
     * 发送消息
     *
     * @param message 消息对象
     */
    private void sendTo(Message message) {
        Session s = clients.get(message.getUserId());
        System.out.println(clients.toString());

        if (s != null) {
            try {
                s.getBasicRemote().sendText(message.getMessage());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }


}
